介绍了摩托车发动机O型橡胶密封圈材料的结构、性能，阐述了橡胶老化的机理。
This paper describes the structure and the performance of the motorcycle engine O-shaped rubber sealing ring, and the reasons and mechanism of aging of rubber products are also elaborated.
运用该模型计算了“O”型橡胶密封圈在不同时间下的老化性能，并与实验结果进行了比较。
By using this model, the aging properties of "o" type rubber sealing ring at different time was calculated and compared with the experiment results.
在不具备大平板硫化机及大型加工设备条件下，通过设计加工“变形模具”，在小平板硫化机上生产出大规格、高精度的O型橡胶密封圈。
When no big-size plate vulcanizing press machine, through design deformation mold, could mold big-size high precision O-shape rubber seal on little plate vulcanizing press machine.
橡胶密封圈式间接引入装置，广泛应用于低压隔爆型电机中。
The entry with rubber sealing ring are widely used in the design of low-voltage flameproof motor.
研究了O型丁腈橡胶密封圈中腈基含量对其耐润滑脂性能的影响，讨论了不同性能润滑脂对丁腈橡胶的溶胀作用机理。
The resistance to lubricating greases of some O-ring NBR seals was studied in this paper. The swelling of NBR in different lubricating greases were discussed.
研究了O型丁腈橡胶密封圈中腈基含量对其耐润滑脂性能的影响，讨论了不同性能润滑脂对丁腈橡胶的溶胀作用机理。
The resistance to lubricating greases of some O-ring NBR seals was studied in this paper. The swelling of NBR in different lubricating greases were discussed.
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